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birdspider on 05/22/09

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Last Edited at 05/22/09 05:30am

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Simple Profiler

/ Published in: PHP

Rather simple profiler for > php5, if you want to find out where the heck those 0.5 sec function time goes into

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<?php
// simple profiler class
// by Patrik Plihal

class myProfiler{
	var $timestamps = array();
	var $cnt = 0; // in fact count(%timestamps)+1
	var $style = '<style type="text/css">.profiler{width: 420px; font-size: 11px; border: solid 1px #45A} .tar{text-align:right;} th{background-color: #D9D9D9 !important} .names{width: 150px;} .time1{width: 120px;background-color: #AAD} .time2{width: 120px;background-color: #DDA}</style>';
	var $factor;
	var $unit;

function __construct($unit="s",$lazy = false){
		if(!$lazy)
			$this->capture('start');
		$this->unit = $unit;
		switch($unit){
		case "ms":
			$this->factor = 1000;
			break;
		case "Ã‚Âµs":
			$this->factor = 1000000;
			break;
		default:
			$this->factor = 1;
			break;
		}
	}

function capture($desc){
		$this->timestamps []= new myTimeStamp((empty($desc) ? $this->cnt : $desc));
		$this->cnt++;
	}

function getReport(){
		if($this->cnt < 2) return "";
		$rep = "\n   capturepoint  |        absolute     relative\n";
		$profiletime = $this->timestamps[$this->cnt-1]->time - $this->timestamps[0]->time;
		$lasttime = $this->timestamps[0]->time;
		for($i = 1; $i < $this->cnt; $i++){
			$delta = $this->timestamps[$i]->time - $lasttime;
			$rep .= sprintf("[ %12s ] : %10s %3s %10s %%\n",$this->timestamps[$i]->name,round($delta*$this->factor,5),$this->unit,round(($delta/$profiletime),3)*100); //$delta,($delta/$wholetime))
			$lasttime = $this->timestamps[$i]->time;
		}
		$rep .= sprintf("[ %12s ] | %10s sec %10s %%\n","summary",round($profiletime,5),100); //$delta,($delta/$wholetime))
		return $rep."\n\n";
	}

function test(){
		print '<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN"\n"http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">';
		print '<html><head></head><body>';
		foreach(range(1,5) as $i){
			usleep(250000*$i);
			$this->capture(($i/((float)4)));
		}
		print $this->getHTMLReport();
		print '</body></html>';
	}
}

class myTimeStamp{
	var $name;
	var $time;

function __construct($n,$t = false){
		$this->name = $n;
		$this->time = (empty($t) ? microtime(true) : $t);
	}
}
?>

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